Added ValidationResult as possible validation result - #2332

/home/runner/work/wolverine/wolverine/src/Persistence/Wolverine.Polecat/Codegen/SessionVariableSource.cs(40,12): warning CS8618: Non-nullable field '_session' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable. [/home/runner/work/wolverine/wolverine/src/Persistence/Wolverine.Polecat/Wolverine.Polecat.csproj::TargetFramework=net10.0]

/home/runner/work/wolverine/wolverine/src/Persistence/Wolverine.Polecat/Codegen/SessionVariableSource.cs(77,12): warning CS8618: Non-nullable field '_session' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable. [/home/runner/work/wolverine/wolverine/src/Persistence/Wolverine.Polecat/Wolverine.Polecat.csproj::TargetFramework=net10.0]

/home/runner/work/wolverine/wolverine/src/Persistence/Wolverine.Polecat/AggregateHandling.cs(28,21): warning CS8618: Non-nullable property 'AggregateId' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable. [/home/runner/work/wolverine/wolverine/src/Persistence/Wolverine.Polecat/Wolverine.Polecat.csproj::TargetFramework=net10.0]

/home/runner/work/wolverine/wolverine/src/Persistence/Wolverine.Polecat/AggregateHandling.cs(27,17): warning CS8618: Non-nullable property 'AggregateType' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable. [/home/runner/work/wolverine/wolverine/src/Persistence/Wolverine.Polecat/Wolverine.Polecat.csproj::TargetFramework=net10.0]

/home/runner/work/wolverine/wolverine/src/Persistence/Wolverine.Polecat/AggregateHandlerAttribute.cs(31,12): warning CS8618: Non-nullable property 'MissingMessage' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable. [/home/runner/work/wolverine/wolverine/src/Persistence/Wolverine.Polecat/Wolverine.Polecat.csproj::TargetFramework=net10.0]

/home/runner/work/wolverine/wolverine/src/Persistence/Wolverine.Polecat/WriteAggregateAttribute.cs(30,12): warning CS8618: Non-nullable property 'MissingMessage' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable. [/home/runner/work/wolverine/wolverine/src/Persistence/Wolverine.Polecat/Wolverine.Polecat.csproj::TargetFramework=net10.0]

/home/runner/work/wolverine/wolverine/src/Persistence/Wolverine.Polecat/WriteAggregateAttribute.cs(29,12): warning CS8618: Non-nullable property 'MissingMessage' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable. [/home/runner/work/wolverine/wolverine/src/Persistence/Wolverine.Polecat/Wolverine.Polecat.csproj::TargetFramework=net10.0]

/home/runner/work/wolverine/wolverine/src/Persistence/Wolverine.Polecat/PolecatIntegration.cs(208,81): warning CS8714: The type 'TSource' cannot be used as type parameter 'T' in the generic type or method 'IEvent<T>'. Nullability of type argument 'TSource' doesn't match 'notnull' constraint. [/home/runner/work/wolverine/wolverine/src/Persistence/Wolverine.Polecat/Wolverine.Polecat.csproj::TargetFramework=net10.0]

/home/runner/work/wolverine/wolverine/src/Persistence/Wolverine.Polecat/PolecatIntegration.cs(177,16): warning CS8714: The type 'T' cannot be used as type parameter 'T' in the generic type or method 'IEvent<T>'. Nullability of type argument 'T' doesn't match 'notnull' constraint. [/home/runner/work/wolverine/wolverine/src/Persistence/Wolverine.Polecat/Wolverine.Polecat.csproj::TargetFramework=net10.0]